Backwards-compatible orphan instances for base

 base-orphans defines orphan instances that mimic instances available in later
 versions of base to a wider (older) range of compilers. base-orphans does
 not export anything except the orphan instances themselves and complements
 the base-compat package.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.